Home & Performance Page Flips

On my Windows7 computer NIS Version 19.6.1.8 installed on 25/11/2011 I have no Home flip option on Performance Page, so I  have to close page (via X option) to return to Home Page.

 

On my WindowsXP computer NIS Version 19.6.1.8.installed today (9/3/2012) I have a Home flip option on Performance Page, which works, so if I use close window (via X option) it closes the whole link.

 

Both computers have been Liveupdated today.

 

Any thoughts. PeteB.